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The only issue I see is that the type of laser is not identified. It just says that the beam is not visible. But it should state the type, is it a x-ray laser, gamma-ray laser, uv laser etc. Just because the beam is invisible doesn't mean that it can be detected.
I cannot identify the type of laser because that would require me to know what laser(s) were used by the original PLAs. This information is unavailable to me and unless the FM is going to label what laser it uses, I cannot answer. To do so would mean a retcon. That alone is the FM's prerogative, not mine. @Koenig808